USA MAV500/MKVI Service Manual
I/O Driver Board
28-00486-00
11-11
This document contains confidential information which is proprietary to ATI. It may not be disclosed to any unauthorized parties,
and it may not be copied. All rights reserved.
© Copyright (ATI) Aristocrat Technologies, Inc. 2002.
11.2.6 DIP Switch Banks
Two 8-bit DIP switch banks are provided. The switches are placed close to the
bottom edge of the Driver Board for easy access. The settings and functions of these
switches are software dependent and may be viewed via the Operator Mode Menu
➾
Operator Setup/Selections
➾
DIP Switch Settings.
Bank 1
The first DIP switch bank allows the coin/token value and the base credit value of the
machine to be set. These settings can only be changed during a 3-way metering error.
To cause a 3-way metering error:
•
remove the battery temporarily
or
•
replace the game EPROMs.
To recover from a metering error, follow the on-screen instructions. All electronic
meters will be reset after recovery.
Bank 2
The second DIP switch bank allows certain game options to be enabled/disabled.
Changes to these settings only take effect during machine power-up.
11.2.7 Interrupt Request
The table below shows the interrupt request Bit map for DUART COM Ports 4, 5, 6,
and 7.
The read-only address “0x3012220” provides a quick way to determine which
channel has generated the interrupt.
Table 11-4 Interrupt Request Bit Map
Bit
Label
Function
D4
INTA
DUART COM Port 4 - Address 0x3012100
D5
INTB
DUART COM Port 5 - Address 0x3012140
D6
INT2A
DUART COM Port 6 - Address 0x3012300
D7
INT2B
DUART COM Port 7 - Address 0x3012340
11.2.8 Hard Meters and Lamps
The Extended I/O Driver Board can verify if the correct number of hard meters are
actually connected. This provides meter security which is a requirement of some
markets. A minimum of three and a maximum of six hard meters are used, depending
on the specific market. Unused hard meter inputs have to be linked on the Driver
Board to prevent misleading signals.